大学生人体成分的测定与分析

目的：了解大学生人体成分的组成，为增强大学生体质提供科学依据。方珐：用生物电阻抗分析法（bioelectrical impedance analysis，BIA）对山东大学207名19～24岁大学生进行人体成分的测定与分析。结果：男生体重、瘦体重、无机质分别为64．08（SD7．61）kg、53．80（SD5．34）kg、3．46（SD0．29）kg；女生为53．58（SD5．65）kg、39．62（SD3．39）kg、2．70（SD0．18）kg，男生显著高于女生（P〈0．001）；而体脂肪（BF）、身体脂肪比率（BF％）男生为10．28（SD3．64）kg、15．79（SD4．12）％，女生为13．96（SD3．40）kg、25．78（SD4．17）％，男生显著低于女生（P〈0．001）。健康评估得分男生为74．60（SD4．40）分、女生为74．94（SD3．11）分，男女无显著差异（P〉0．05）。以身体脂肪比率（BF％）判定肥胖与营养不良发生率，男生分别为15．67％和2．94％，女生为18．1％和2．86％。结论：受试大学生肥胖与营养不良检出率均较低，肌肉量偏低，应合理饮食，加强体育锻炼。

Analysis of body compositions of university students

Objective:To study the body composition of university students and provide a basis for improving the health condition of the students.Method:Body composition of 207 students aged 19 to 24 years in Shandong University was measured by bioelectrical impedance analysis(BIA).Results:Body weight,lean body mass and mineral were 64.08(SD 7.61)kg,53.80(SD 5.34)kg,and 3.46(SD 0.29)kg respectively for males,and 53.58(SD 5.65)kg,39.62(SD 3.39)kg,and 2.70(SD 0.18)kg for females,which were significantly higher in males than in females(P<0.001).The body fat and body fat percentage(BFP)were 10.28(SD 3.64)kg and 15.79(SD 4.12)% for males,and 13.96(SD 3.40)kg and 25.78(SD 4.71)% for females,which were significantly lower in males than in females(P<0.001).Fitness score was 74.60(SD 4.40)for males and 74.94(SD 3.11)for females,which was not significantly different(P>0.05).The obesity and malnutrition rate by BFP were 15.67% and 2.94% for males,and 18.1% and 2.86% for females.Conclusion:These subjects are well-balanced,as well as muscle mass seems to be a bit lower,which suggest that university students need rational diet and do more physical exercises.